/* 
轮播图区域
*/
.banner_area {
  position: relative;
  height: 300px;
  min-width: 1240px;
  z-index: 10;
}
.banner_area .mod-entry {
  position: relative;
  width: 1200px;
  margin: 0 auto;
  z-index: 20;
}
.banner_area .mod-entry .entry_login {
  position: absolute;
  top: 20px;
  right: 0;
  overflow: hidden;
  display: inline-block;
  height: 80px;
  width: 220px;
  vertical-align: top;
  text-align: center;
  border-radius: 3px;
  visibility: visible;
  line-height: 50px;
  background-color: #fff;
  height: auto;
  box-shadow: 0 1px 10px 3px rgba(0, 0, 0, 0.1);
}
.banner_area .mod-entry .entry_login .unlogin {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}
.banner_area .mod-entry .entry_login .unlogin p {
  font-size: 16px;
  color: #999;
}
.banner_area .mod-entry .entry_login .unlogin .img {
  width: 170px;
  height: 130px;
  background: url("../../images/index-sprite.png") no-repeat -144px -370px;
  margin: 10px auto auto;
}
.banner_area .mod-entry .entry_login .unlogin a {
  line-height: 50px;
  width: 200px;
  margin: 10px 0;
  font-size: 16px;
  border-radius: 3px;
  background-color: #23b8ff;
  color: #fff;
  display: inline-block;
  vertical-align: middle;
  cursor: pointer;
  font-size: 14px;
  text-align: center;
  border-radius: 2px;
  border: 0;
  user-select: none;
}
.banner_area .mod-entry .entry_login .unlogin a:hover {
  background-color: #12a7ff;
}
.banner_area .mod-entry .entry_login .suclogin {
  box-sizing: border-box;
  padding: 20px 20px 10px 20px;
}
.banner_area .mod-entry .entry_login .suclogin .userinfo {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.banner_area .mod-entry .entry_login .suclogin .userinfo img {
  width: 40px;
  height: 40px;
  vertical-align: middle;
}
.banner_area .banner_container {
  width: 100%;
  height: 300px;
  overflow: hidden;
}
.banner_area .banner_container .swiper-container {
  width: 100%;
  height: 100%;
}
.banner_area .banner_container .swiper-container .swiper-pagination {
  left: -10%;
  text-align: none;
}
.banner_area .banner_container .swiper-container .swiper-pagination-bullet {
  width: 45px;
  height: 2.5px;
  display: inline-block;
  border-radius: 20px;
  opacity: 0.8;
}
.banner_area .banner_container .swiper-container .swiper-button-next {
  right: 26%;
}
.banner_area .banner_container .swiper-container .swiper-button-prev {
  left: 15%;
}
.banner_area .banner_container .swiper-slide {
  overflow: hidden;
  position: relative;
}
.banner_area .banner_container .swiper-slide img {
  position: absolute;
  left: 40%;
  transform: translateX(-40%);
  width: 710px;
  height: 300px;
}
.cate-tab {
  width: 100%;
  text-align: center;
  position: relative;
  background-color: #fff;
  border-bottom: 1px solid #e5e5e5;
}
.cate-tab .top li {
  margin-left: 2px;
  display: inline-block;
  padding: 25px 12px;
  position: relative;
  font-size: 20px;
  cursor: pointer;
  color: #666;
}
.cate-tab .top .xuanzhong {
  color: #23b8ff;
  border-bottom: 4px solid #23b8ff;
}
.cate_item {
  display: none;
  margin-top: 55px;
  background-color: #fff;
}
#front h2,
#mobile h2,
#xingqu h2 {
  text-align: center;
  line-height: 30px;
  font-size: 30px;
}
.select_live {
  margin-top: 40px;
  display: flex;
}
.select_live .live_content {
  width: 620px;
  height: 348px;
}
.select_live .live_content > div {
  position: relative;
  width: 100%;
  height: 100%;
  display: none;
}
.select_live .live_content > div::before {
  content: "";
  position: absolute;
  width: 100%;
  height: 100%;
  left: 0;
  top: 0;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 3;
}
.select_live .live_content > div a {
  position: relative;
  display: block;
  width: 100%;
  height: 100%;
}
.select_live .live_content > div a img {
  position: absolute;
  width: 100%;
  height: 100%;
  left: 0;
  top: 0;
  z-index: 1;
}
.select_live .live_content > div .text_tit {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 10;
}
.select_live .live_content > div .text_tit .desc_p {
  color: #fff;
  overflow: hidden;
  white-space: nowrap;
  -o-text-overflow: ellipsis;
  text-overflow: ellipsis;
  word-wrap: normal;
  display: block;
  font-size: 24px;
  line-height: 24px;
  text-shadow: 0 0 20px hsla(0, 0%, 40%, 0.5);
}
.select_live .live_content > div .text_tit .quickSignUp {
  display: block;
  margin: 30px auto 0;
  border-radius: 2px;
  width: 180px;
  height: 50px;
  line-height: 50px;
  font-size: 20px;
  text-align: center;
  color: #fff;
  background-color: #23b8ff;
}
.select_live .wrapper {
  position: relative;
  width: 580px;
  height: 348px;
}
.select_live .wrapper .time-axis {
  position: absolute;
  border-left: 2px dotted #e8e8e8;
  height: 100%;
  left: 43px;
  z-index: 1;
}
.select_live .wrapper #left,
.select_live .wrapper #left2 {
  position: absolute;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  list-style: disc;
}
.select_live .wrapper #left li,
.select_live .wrapper #left2 li {
  flex: 1;
  display: flex;
  align-items: center;
  background-color: #f4f4f4;
  position: relative;
  font-size: 16px;
}
.select_live .wrapper #left li:hover,
.select_live .wrapper #left2 li:hover {
  background-color: #fff;
  border-left: 5px solid #23b8fe;
}
.select_live .wrapper #left li:hover b,
.select_live .wrapper #left2 li:hover b {
  color: #23b8fe;
}
.select_live .wrapper #left li:hover span,
.select_live .wrapper #left2 li:hover span {
  color: #23b8fe;
}
.select_live .wrapper #left li span,
.select_live .wrapper #left2 li span {
  color: #bbbbbb;
  margin-left: 72px;
  margin-right: 35px;
  color: #bbb;
}
.select_live .wrapper #left li .living,
.select_live .wrapper #left2 li .living {
  color: #23b8fe;
}
.select_live .wrapper #left li b,
.select_live .wrapper #left2 li b {
  position: absolute;
  color: #bbbbbb;
  font-size: 30px;
  left: 37px;
  font-weight: 700;
  z-index: 2;
}
.select_live .wrapper #left li img,
.select_live .wrapper #left2 li img {
  position: absolute;
  left: 31px;
  z-index: 2;
}
.recommended_area {
  margin-top: 55px;
  display: flex;
  justify-content: space-between;
}
.recommended_area li {
  vertical-align: top;
  width: 285px;
  font-size: 14px;
  transition: all 0.3s;
}
.recommended_area li:hover {
  margin-top: -10px;
  box-shadow: 0 1px 10px 3px rgba(0, 0, 0, 0.1);
}
.recommended_area li .item-hd {
  position: relative;
  display: block;
  padding: 0 20px;
  color: #fff;
  height: 160px;
  line-height: 160px;
}
.recommended_area li .item-hd .item-cover {
  width: 100%;
  height: 100%;
  position: absolute;
  left: 0;
}
.recommended_area li .item-hd .item-hd-mask {
  background-color: rgba(0, 0, 0, 0.65);
  position: absolute;
  width: 100%;
  height: 100%;
  left: 0;
}
.recommended_area li .item-hd .item-hd-wrap {
  width: 100%;
  display: inline-block;
  vertical-align: middle;
  position: relative;
  z-index: 10;
}
.recommended_area li .item-hd .item-hd-wrap .item-tt {
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  word-wrap: normal;
  font-size: 22px;
  line-height: 30px;
  margin-bottom: 20px;
}
.recommended_area li .item-hd .item-hd-wrap .item-wording {
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  word-wrap: normal;
  line-height: 20px;
  margin-top: 2px;
}
.recommended_area li .item-bd {
  height: 160px;
  padding-bottom: 81px;
  max-height: 160px;
}
.recommended_area li .item-bd .item-bd-wrap {
  display: block;
  color: #bbb;
  min-height: 160px;
  max-height: 160px;
  overflow: hidden;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  padding: 17px 20px 16px;
  border: 1px solid #e9e9e9;
  background-color: #fff;
}
.recommended_area li .item-bd .item-bd-wrap .item-ctt {
  line-height: 19px;
  padding-bottom: 2px;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}
.recommended_area li .item-bd .item-bd-wrap .item-content {
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  word-wrap: normal;
  font-size: 16px;
  line-height: 19px;
  margin-top: 16px;
}
.recommended_area li .item-bd .item-bd-wrap .item-content span {
  color: #777;
  margin-left: 13px;
}
.course-card-list {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
}
.course-card-list li {
  width: 220px;
  height: 230px;
  position: relative;
  overflow: hidden;
  margin-top: 15px;
  transition: all 0.3s;
}
.course-card-list li:hover {
  box-shadow: 0 1px 10px 3px rgba(0, 0, 0, 0.1);
  margin-top: 5px;
}
.course-card-list li .item-img-link {
  position: relative;
  display: block;
  margin-bottom: 8px;
}
.course-card-list li .item-img-link .item-img {
  display: block;
  width: 220px;
  height: 124px;
}
.course-card-list li .item-img-link .item-status {
  position: absolute;
  width: 220px;
  height: 24px;
  line-height: 24px;
  font-size: 12px;
  color: #fff;
  top: 100px;
  overflow: hidden;
}
.course-card-list li .item-tt {
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  height: 40px;
  font-size: 14px;
  margin-bottom: 6px;
  position: relative;
}
.course-card-list li .item-tt .item-tt-link {
  word-wrap: break-word;
  white-space: pre-wrap;
  word-break: break-all;
  font-size: 14px;
  line-height: 20px;
}
.course-card-list li .item-line {
  margin-bottom: 3px;
  overflow: hidden;
  margin-top: 0;
  height: 18px;
  font-size: 12px;
}
.course-card-list li .item-line span {
  color: #999;
}
.course-card-list li .item-line .item-source-link {
  max-width: 163px;
  color: #999;
  margin-left: 8px;
}
.course-card-list li .item-line .item-source-link::before {
  content: "";
  width: 1px;
  height: 12px;
  background-color: #ddd;
  display: inline-block;
  vertical-align: -1px;
  margin-right: 8px;
}
.course-card-list li .item-line .item-source-tag {
  display: inline-block;
  margin-top: 1px;
  margin-left: 4px;
  width: 16px;
  height: 16px;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  background-image: url("../../images/index/renzheng.png");
  background-size: contain;
  vertical-align: bottom;
}
.course-card-list li .item-line--bottom {
  height: 24px;
  line-height: 24px;
}
.course-card-list li .item-line--bottom .item-price {
  color: #f4621f;
  font-size: 14px;
}
.course-card-list li .item-line--bottom .item-discount-tag {
  color: #f4621f;
  padding: 1px;
  margin: 2px;
  font-size: 12px;
  line-height: 12px;
  border: 1px solid;
  border-radius: 3px;
  transform: scale(0.8);
}
.course-card-list li .item-line--bottom .item-price--origin {
  font-size: 12px;
  color: #999;
  margin-left: 2px;
  text-decoration: line-through;
}
.course-card-list li .item-line--bottom .item-user {
  color: #999;
  margin-left: 10px;
}
.knowledge a {
  display: inline-block;
  border: 1px solid #ddd;
  border-radius: 20px;
  font-size: 14px;
  padding: 6px 14px;
  margin-right: 16px;
  margin-bottom: 16px;
  color: #333;
}
